Device for cleaning sh ip- botto ms



(No Model.) 2 Sheets-Shet 1. N. A. GUSTAPSON DEVICE FOR GLBA NING SHIP BOTTOMS.

' NO. 313,822. Patented-MahlO, 188

WITNESSES 6 of W W (No Model.) 2 SheetsSl1eet 2.

N. A. GUSTAFSON DEVICE FOR CLEANING SHIP BOTTOMS.

No. 313,822. Patented Mar. 10, 1885.

WITNESSES JJVVEJVTOR Attorney N. PETERS PhoIn-Lithogmphnr. waslvin mm D4 0.

What I claim is- 1. In aship-bottom cleaner, a means to utilize the relative inertia of the water when said ship is in motion to drive the cleaning mechanism, consisting of a wheel with feathering blades which engage with the water, said wheel having connection with said mechanism.

2. In a ship-bottom cleaner, a driving-wheel connected to a cleaning mechanism. said wheel consisting of a drum with longitudinal shoulders, and a series of hinged blades longitudinally arranged coincident with said shoulders, substantially as and for the purpose specified.

3. In a ship-bottom cleaner, the combination, with a box containing a cleaning mechanism, of a driving-wheel with feathering blades, and a coincident shield within the box, separating the wheel from the cleaning mechanism, substantially as and for the pfirpose specified.

4. In a ship-bottom cleaner, a wheel with feathering blades engaging with the water when the ship is in motion, in combination with a shaft carrying spring-blades with scraping-heads, the said wheel being connected to and driving the shaft, substantially as and for the purpose specified.

5. In aship-bottom cleaner, a curved block having pins projecting from its surface, said block being within the frame of the cleaner coincident with the ship, and operating as a loosener, substantially as and for the purpose specified.

6. In a ship-bottom cleaner, a looseningscraper consisting of a curved block with pins projecting from its surface, and a curved track on which it travels, in combination with a .driving or actuating mechanism, substantially as and for the purpose specified.

7. In aship-bottom cleaner, a cleaning mechanism consisting of a loosening-scraper formed of a curved block with projecting pins, and provided with a curved track on which it travels, anda shaft carrying spring-blades with scraping-heads, the parts being connected to each other and to an actuating mechanism, substantially as and for the purpose specified.

8. In a ship-bottom cleaner, the combination, with a curved loosening-scraper traveling on curved ways, of a shaft carrying one or more spring-arms, and having cranks at each end and a jointed rod and short connecting-rod, the rods connecting the scraper and shaft, substantially as and for the purpose specified.

9. In a ship-bottom cleaner, the combination, with a feathering propelling-wheel, of a cleaning mechanism consisting of a shaft having cranks at each end, and carrying spring scraping arms or blades, and a curved loos ening-scraper provided with a curved track or way, the several parts being connected and operated substantially as and for the purpose specified.

10. In a ship-bottom cleaner, rollers with curved fiat spring-bearings pivoted in recesses at the forward and rearends of the main box, so as to yield when pressed against the bottom of the ship, substantially as shown and specified.

11. A ship-bottom cleaner'consisting of a box pointed at the forward end and carrying a feathering propelling-wheel at its outermost point, and at the bearing-surface a shaft car.- rying spring scraping-arms, and a curved loosening-scrapcr traveling on curved ways, the box having also rollers provided with pivoted spring-bearings, the entire device operating and the parts connected substantially as and for the purpose specified.

12. In combination with aship-bottom clean er, a line or lines for suspending and sustaining the same, said line having foot-marks or the like for indicating the position of the device,substantially as and for the purpose specified.

13. In combination with ashipbottom cleaner, a device for operating the same consisting of a clevis straddling the cutwvater of the ship, a line or lines graduated to indicate the position of the cleaner, and connected to a reversible bail on the said cleaner and to the clevis, and asuitable connecting-tackle, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

NELS A. GUSTAFSON.

Witnesses:

R. M. SULLIVAN, JOHN GULBERG. 

